As I told, I've started to play with optimus under F22. It is definitely more promising than was years ago, at least I can start everything but 3D apps which is in my case is not so frequent, however ideally everything should work fine (intel for my normal x session, and on-demand nvidia when I need this power)

I've used the following guide with bumblebee nvidia proprietary driver
https://fedoraproject.org/wiki/Bumblebee#Fedora_22

Everything is fine except nvidia is still ON
12:52:37]vlad@tohuvabohu ~]$  cat /proc/acpi/bbswitch
0000:01:00.0 ON

When I start glxgear, I'm getting this

12:58:06]vlad@tohuvabohu ~]$  optirun -vvvv glxspheres
[  689.104379] [DEBUG]Reading file: /etc/bumblebee/bumblebee.conf
[  689.104830] [INFO]Configured driver: nvidia
[  689.105417] [DEBUG]optirun version 3.2.1 starting...
[  689.105429] [DEBUG]Active configuration:
[  689.105432] [DEBUG] bumblebeed config file: /etc/bumblebee/bumblebee.conf
[  689.105436] [DEBUG] X display: :8
[  689.105440] [DEBUG] LD_LIBRARY_PATH: /usr/lib64/nvidia-bumblebee:/usr/lib/nvidia-bumblebee:/usr/lib64:/usr/lib
[  689.105444] [DEBUG] Socket path: /var/run/bumblebee.socket
[  689.105447] [DEBUG] Accel/display bridge: auto
[  689.105450] [DEBUG] VGL Compression: proxy
[  689.105453] [DEBUG] VGLrun extra options: 
[  689.105457] [DEBUG] Primus LD Path: /usr/lib/primus:/usr/lib64/primus
[  689.105591] [DEBUG]Using auto-detected bridge virtualgl
[  689.394558] [INFO]Response: No - error: [XORG] (EE) systemd-logind: failed to get session: PID 6459 does not belong to any known session

[  689.394575] [ERROR]Cannot access secondary GPU - error: [XORG] (EE) systemd-logind: failed to get session: PID 6459 does not belong to any known session

[  689.394580] [DEBUG]Socket closed.
[  689.394598] [ERROR]Aborting because fallback start is disabled.
[  689.394602] [DEBUG]Killing all remaining processes.

These are my versions
bumblebee.x86_64                     3.2.1-7.fc22                        @System
bumblebee-nonfree-release.noarch     1.2-1                               @System
bumblebee-nvidia.x86_64              352.21-1.fc22                       @System
bumblebee-release.noarch             1.2-1                               @System
akmod-nvidia.x86_64                  2:352.30-1.fc22                     @System
bumblebee-nvidia.x86_64              352.21-1.fc22                       @System
kmod-nvidia-4.1.3-200.fc22.x86_64.x86_64
kmod-nvidia-4.1.3-201.fc22.x86_64.x86_64
kmod-nvidia-4.1.4-200.fc22.x86_64.x86_64
nvidia-kmod-debuginfo.x86_64         1:352.30-2.fc22                     @System
nvidia-libXNVCtrl.x86_64             2:352.30-1.fc22                     @System

Anyone of you running successfully optimus/bumblebee on F22?

Thank you
L: